Floor mat



FIG. 1 is a front, elevational view of the floor mat embodying my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof; and,

FIG. 6 is a back elevational view thereof. 

The ornamental design for a floor mat, as shown and described. 